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DEVICE FOR REGULATING THE HUMIDITY OF THE AIR IN A MUSICAL INSTRUMENT

  • US 3,719,033 A
  • Filed: 07/19/1971
  • Issued: 03/06/1973
  • Est. Priority Date: 09/22/1966
  • Status: Expired due to Term
First Claim
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1. A device for regulating the humidity of the air in the interior of a piano or other musical instrument, said device consisting of a closed hollow container having a wall provided with a plurality of apertures, said apertures consisting of groups of at least two large apertures interconnected by means to prevent the formation of water drops at the apertures, said means comprising a capillary slot which is narrow relative to the diameter of the apertures, said hollow coNtainer being entirely filled with means for absorbing moisture from a damp atmosphere and for giving up moisture to a dry atmosphere, said last-mentioned means comprising a wettable material which when dry has an affinity for moisture and when wetted comprises such an amount of water that it may humidify the air in the musical instrument.

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